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