We review twistor graphs for amplitudes and stress tensor correlators in 
N=4 SYM, focusing on the NMHV five-point tree example as a pedagocial 
testing ground. In both cases the diagrams have to sum into a unique 
superconformal invariant independent of the reference twistor Z* 
introduced by the gauge fixing.

The parallels in the graphical methods point at a generalisation of the 
amplituhedron to the correlator case. Finally, we show that the Z* -> 0 
limit of any diagram corresponds to a unitarity cut of the correlahedron 
form of the correlator.