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