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