You can put an IR blocking filter in front of the lens. Some third party lens assemblies have a mechanically switchable IR block filter. You could attach a filter to a servo arm to move it in and out.
Note you need a IR blocking filter not an IR pass filter to make a NOIR camera produce normal daylight colour images.
You should read NOIR as "No-IR bolcking filter" rather than "No IR". The NOIR camera IS sensitive tio IR light. The standard camra is NOT sensitive to IR.
Something like this should work (no guarantee)
http://www.ebay.co.uk/itm/Optical-UV-IR ... SwhvFZDGi6
Color: Show as Picture
Material: Optical Glass
Product Size: 9.5 * 9.5 * 1 mm
Tavg > 95% @ 440-620nm
T = 50% @ 648 + -15 nm
Tavg <1 @ 700-1000nm
T: <1% @ 1050nm
Packing List: 1 x Optical UV Filter
If you wanted to take IR photos, where foliage is bright and the sky is dark, you could try an IR Pass filer with the NOIR to block visible light.
Maybe something like this
http://www.ebay.co.uk/itm/52mm-Infra-re ... 3641.l6368