Connect the output of "Construct" to the left most input tab "AutoColor" module.  The right output tab of the "AutoColor" module adds color attributes to the field.  Connecting this output tab with the left most input tab of MapToPlane which will compute an slice through the field.  Add another input tab to the collect module and you'll be able to see this slice along with the glyphs and connections.  An important point, about the order of connections between modules.  By placing the AutoColor before the MapToPlane you get a color table which ranges over the entire dataset and nut just the current cut plane.