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