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