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