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