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