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