And even if you were sending your resume directly to the chapter, I don't think it's the paper that's really going to impress them. They have a million other things to keep track of. I know nothing of other sororities'/chapters' membership selection processes, but I highly doubt anyone is sitting around saying, "Well, it's down to Girl #1 and Girl #2. They're both pretty evenly matched, but Girl #2 DID use embossed resume paper..."
Try to focus on what's important. Good luck!