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