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