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