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