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