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