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