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