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