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