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