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