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