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