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