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