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