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