Cool! This pdf has the full BV playfield redrawn as vector. I used Flash for this. Inkscape should work too. Once you figure it out you can really crank out these types of drawings. Keys to making it easier are exploiting library items and layers. Library items are things you will need to use repeatedly, of course there are many of these on a pinball machine. Draw a rollover button once, store it as a library graphic and name it “rollover button” and you never have to draw it again. Just drag it over when you need another one. If you set up your layers up right it helps to do other things, for example put the rubbers on their own layer, then you can turn off the other layers to make just a rubber chart.
To make a drawing like this I import the original graphic (from Bally Manual in this case) and put it on the bottom layer and lock it in place. Then you can draw the stuff right on top of it using it as a guide. When you are ready to export the image, just turn off that reference layer so it’s not visible.