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