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