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