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