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