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)(20,25)(21,26)(22,29)(23,27)(24,30)(31,32)(9,10)(11,14)(12,13)(15,16)(17,19,21,25,23,31,22,30)(18,24,29,32,27,20,26,28)(2,5)(6,8)(10,13)(14,16)(17,20,23,24)(18,25,27,30)(19,29,31,26)(21,28,22,32)(1,3,4,7)(2,6,5,8)(9,11)(10,14)(12,15)(13,16)(17,20)(18,25)(19,26)(21,28)(22,32)(23,24)(27,30)(29,31)(11,15)(14,16)(17,21,23,22)(18,26,27,29)(19,25,31,30)(20,32,24,28)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.