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