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