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