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