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