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