Everybody around her was gay and busy, prosperous and important; each had their object of interest, their part, their dress, their favourite scene, their friends and confederates: all were finding employment in consultations and comparisons, or diversion in the playful conceits they suggested.
There are no more uses of "diversion" in the book.
Show samples from other sources
The attack on the capital was actually a diversion to draw troops away from the port city.
And I’d bet my broomstick he let that troll in, to make a diversion!
J.K. Rowling -- Harry Potter and the Sorcerer’s Stone