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