[JKT]

Do you mean the drawings are all in the same, single OmniGraffle file or that they are spread across 50 different files?

If the former I assume you can't or don't want to simply print the whole document for people to view?

From the "it just might work" school: if they are separate files, could you create and use a desktop printer to drag and drop print each file?

(Btw, I doubt I'll be able to help if you do answer this as I don't do scripting at all, but I think you need to be more precise about what it is you need before others can chime in).