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