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