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