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