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