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