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