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