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