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