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