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