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