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