If it is small enough, which it likely is, get somebody who is handy with upholstery and a sewing machine.
Get some foam padding, some fabric that matches your upholstery and custom make a snug but not tight fitting cover that has flaps to fold underneath the safe. Place it near a chair or the sofa in plain sight.
It is now cleverly disguised as a footstool.
It is out in the open for quick access should you need your protection, and no thief will ever think twice about examining a footstool by a sofa.
Remember, they are after something valuable that is easy to grab and run with.
And, when you are relaxing with a beverage of choice, you have a nice place to prop up your feet! :B