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