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