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