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