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