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