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