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