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