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)(26,30)(31,32)(1,3)(2,5)(4,8)(6,7)(9,11)(10,15)(12,14)(13,16)(17,18,21,22)(19,25,27,23)(20,24,28,29)(26,31,32,30)(3,8)(5,7)(9,12,14,11)(10,15,13,16)(17,19,22,25,21,27,18,23)(20,26,29,31,28,32,24,30)(2,6)(5,7)(9,10,14,13)(11,15,12,16)(17,20,21,28)(18,24,22,29)(19,26,27,32)(23,30,25,31)(9,13,14,10)(11,15,12,16)(19,27)(20,28)(23,25)(24,29)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.