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