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