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