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