"It has been ready a long while," answered the marker, who had already set the balls in a triangle, and was knocking the red one about for his own diversion.
With mingled feelings of annoyance at never being able to get away from acquaintances anywhere, and longing to find some sort of diversion from the monotony of his life, Vronsky looked once more at the gentleman, who had retreated and stood still again, and at the same moment a light came into the eyes of both.
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