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