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