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