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