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