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