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