You're looking at the drill-size check plot of your drill data. You're getting that, so it looks like you're generating the drill information correctly.
You need to add an artwork film that draws the manufacturing drill legend and drill symbol layers, plus the board outline. It's traditional to add overall board dimensions to the outline on this "film" layer.
I hope I remembered the names correctly. In NCDrill configuration, drill symbols are set to letters, shapes, or +-marks, a letter, to the padstack. The drill legend is dynamically regenerated. You just have to place it outside the board outline so we can read it.