One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(6,8)(10,15)(11,19)(12,13)(17,18)(20,21)(22,24) involution — undirected(3,7)(5,8)(9,10)(11,16)(12,17)(13,15)(14,18)(19,24)(20,22)(21,23) involution — undirected(1,2)(3,8)(4,6)(5,7)(9,11,14,21)(10,16,18,23)(12,19,13,20)(15,22,17,24)(9,12,14,13)(10,17,18,15)(11,20,21,19)(16,22,23,24)(10,18)(15,17)(16,23)(22,24) 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.