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