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