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