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