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)(11,15)(12,19)(13,17)(14,18)(16,20)(21,24)(22,23)(1,3,4,8)(2,5,6,7)(9,11)(10,15)(12,22)(13,20)(14,21)(16,17)(18,24)(19,23)(1,2)(3,5)(4,6)(7,8)(9,11)(10,16)(12,22)(13,20)(14,21)(15,19)(17,24)(18,23) involution — undirected(2,6)(5,7)(9,11)(10,16)(12,20)(13,22)(14,21)(15,17)(18,23)(19,24) 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.