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