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