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