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