Mayu is on the latest
AKB48 Konto - Nanimo Soko Made (2013/10/18 ep13)
This vid (credit Hiro) has just the Mayu section:
If not try this following link of the whole vid with the timestep mark 25m58s for her bit
She does a cute drawing! I made screencaps, but won't spoil what she does, so
click here to visit the pic thread to see them.