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