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