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