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