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