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