Since there is an even number of sides of all the polygons, the circles can be alternately colored as shown below.

Instead of being flat and forming nice right-angle joints at each of the intersections, the walls were made of large, curved surfaces, some concave and some convex, that were alternately colored red and blue.

This tiling can also be alternately colored in the [( , , )] symmetry from 3 generator positions.

In these images fundamental domains are alternately colored black and white, and mirrors exist on the boundaries between colors.