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