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