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