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