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