You might find this thread helpful - it has an example of a led clock schematic laid out as a grid, much as @SembazuruCDE suggests. I think you will end up with a schematic that is hard to follow if you try and lay it out as a circle. It also goes on to show a scripted way to lay out the actual pcb which might be of help to you. Using the polar coordinate tool is also likely to be useful in the pcb side.