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