Just wire them as written in your Picture. For you the confusing thing is the common positive , whats absolute correct for the tb6600 and similar.
The reason is the integrated optocouplers and they work with the common anode as follows:
low on input means led is lit so the phototransistor gets switched what means low signal on phototransistors output.
if you change that for common gnd you have to invert signals.
BTW FOR RADDS : some of the tb6600 drivers don´t work on 3.3V they need TTL shifters to get 5V input
