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