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