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