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