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