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