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