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