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