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