I need to think about this???
My advice would be to install a separate switch to remove mains power from the power supply. If it is already plugged into a wall outlet then that is sufficient. Even if you don't turn it on and off at this switch, you do have the capability of isolating the power supply if you need to (similar to a TV set plugged into a wall, you can turn it off or unplug it if you have the need).
I have a similar arrangement for low voltage lighting in my shed. The LEDs are driven by a couple of small constant current drivers connected to an AC plugpack. There are switches to allow me to turn the various lights on and off independently, but I also have a switch to remove power from the plugpack. Whilst I consider it safe to leave the plugpacks connected 24x7, they are not easily visible and I don't live in my shed, so I want the capability to turn *everything* off when I lock up the shed. Also, if there's a fault, I don't want to be in the position of having to use the breaker for my entire shed just to isolate a couple of low voltage lights.
In my case, I have used standard light switches to switch my low voltage lights (so they look like normal light switches) and a separate switch to turn the low voltage on and off (by switching mains to the unswitched outlets)
The switch on the upper right is the main fluorescent light. The switches on the upper left are for two independent LED strips (and are switching 15VAC and under 100mA). The middle switch on the dual switched outlet (lower right) switches power to an unswitched single outlet (not visible) where the transformer is plugged in.
For those concerned with the proximity between the two sets of light switches, they are either side of a vertical member of a stud wall. And for those interested in lighting, yes, this photo was taken using the light from just one of the LED strips at the rear of the shed.
The fact that I have easy access to and often use the switch doesn't mean you have to. In fact, just being able to unplug the power supply would be sufficient. However it may be simpler to place a switch somewhere.