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