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