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