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