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