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