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