One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,4,8,6)(9,10)(11,14)(12,15)(13,16)(19,23)(22,24)(25,26,29,27)(28,31,32,30)(1,3,5,8)(2,6,7,4)(9,11)(10,13)(12,16)(14,15)(18,21)(22,24)(25,27,29,26)(28,31,32,30)(2,7)(4,6)(9,11)(10,14)(12,16)(13,15)(17,18,20,21)(19,22,23,24)(1,4,5,6)(2,8,7,3)(9,11)(10,14)(12,16)(13,15)(17,19,20,23)(18,22,21,24)(25,28,29,32)(26,30,27,31)(1,2)(3,4)(5,7)(6,8)(9,10)(11,13)(12,15)(14,16) 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.