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