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