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