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