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