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