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