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