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