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