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