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