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