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)(19,21,25,29)(20,28,26,22)(24,31,32,30)(1,3,5,4)(2,6,8,7)(9,10)(11,14)(12,13)(15,16)(17,19,28,31,23,25,22,30)(18,24,20,29,27,32,26,21)(1,3,5,4)(2,7,8,6)(10,13)(14,16)(17,20,22,18,23,26,28,27)(19,29,30,24,25,21,31,32)(1,3,5,4)(2,7,8,6)(9,11)(10,14)(12,15)(13,16)(17,21)(18,25)(19,27)(20,30)(22,32)(23,29)(24,28)(26,31)(1,4,5,3)(2,6,8,7)(11,15)(14,16)(19,25)(21,29)(24,32)(30,31)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.