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