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