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