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