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