Your resume should make it obvious what kind of position you are a fit for by having related skills and experience. If you list skills and experience that are really not related to the position you are applying for, I've found recruiters tend to be really confused by it, and get the wrong impression of what you're looking for. Your resume should send a very clear and concise message, like a long form business card.
Therefore, if the positions you're looking to apply to are very much outside graphic design, don't put those skills on. If you're applying to positions where they might be tangentially related, you might put something on there, but make it not prominently featured.
You might also, however, put samples that include your graphic design work on a website that you provide links to on your resume. Once you have the recruiter interested enough by the information they get out of your resume to pay you more attention, then they might take a look at your website, and there is the opportunity to convey more about yourself as an individual, and show off any additional skills you might have.