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