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