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