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