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