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