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