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