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