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