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