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