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