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