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