One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(6,8)(9,10)(11,19)(12,15)(13,17)(14,18)(16,21)(20,23)(22,24) involution — undirected(3,7)(5,8)(10,15)(12,13)(16,19)(17,18)(21,22)(23,24) involution — undirected(1,2)(3,8)(4,6)(5,7)(9,11,14,20)(10,16,18,24)(12,21,13,22)(15,23,17,19)(2,6)(5,8)(11,20)(16,24)(19,23)(21,22) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.