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