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