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