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