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