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)(20,27)(23,28)(24,29)(5,6,8,7)(9,11)(10,13)(12,16)(14,15)(18,22)(23,28)(24,29)(30,32)(5,6,8,7)(9,12,14,10)(11,16,15,13)(17,18)(19,23)(20,24)(21,22)(25,28)(26,30)(27,29)(31,32)(1,2,3,4)(5,7,8,6)(9,13,14,16)(10,15,12,11)(17,19)(18,23)(20,26)(21,25)(22,28)(24,30)(27,31)(29,32)(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.