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