Buy the cat a t-shirt to wear that is not overly tight but not too loose either. This is GUARANTEED to calm the cat down as soon as it is put on. Cats do not like the restraint and it will calm it down and make it less aggressive. This is also good to make them sleep all through the night.
Also, as a bonus, it gives you an excuse to buy her and the cat something simple and she will probably love buying clothes for it.