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