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