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