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