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