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