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