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)(17,18,22,24)(19,23,26,21)(20,28,30,25)(27,29,32,31)(1,3,5,4)(2,6,8,7)(9,10,13,14)(11,16,12,15)(18,24)(20,29)(21,23)(25,32)(27,28)(30,31)(1,3,5,4)(2,7,8,6)(9,11,13,12)(10,15,14,16)(17,19,22,26)(18,21,24,23)(20,27,30,32)(25,29,28,31)(1,4,5,3)(2,6,8,7)(9,11,13,12)(10,16,14,15)(17,20,22,30)(18,25,24,28)(19,27,26,32)(21,29,23,31)(2,8)(6,7)(9,12,13,11)(10,15,14,16)(17,21,22,23)(18,26,24,19)(20,29,30,31)(25,32,28,27)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.