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