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