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