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