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