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