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