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