Play more with her. There are a lot of toys. We have 4 ladies here, all have there own interests, so we have a basket of toys where they can pick what they like. (and it's at the attic, the youngest dog will shred those toys)
One is totally into mice on a fishing rod. We have one at the toilet (no chance to go there with the door closed) and whe fetches the mouse indicating that I need to get the rod and play with her.
With all the toy options they have, including at least 2 scratching posts on the 2 main floors, they leave the toilet paper alone. (but we don't have to leave anything round on the table, as it'll end up on the floor in no-time and when edible, in the dog mere seconds when she's in the room ;) )
Ohh, this one only does it occasionally. I got 3 cats, the other two never did this, but this one(the naughtiest one) will sometime find the toilet paper amusing and will start pulling it.