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