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