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