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