The administrator for the system will get prompted to approve this presentation. If you already have an account in the system he or she can associate your presentation with that account and you should be notified when it has completed publishing. If you don't have an account he/she will have to publish it for you as someone else and then provide you the hyperlink.
As there are a lot of different ways that Relay can be configured (it can send presentations to many different destinations) I can't just say "look here" for you to find your presentation because it will depend on how the profile was configured. In the future, it will work better if you login as yourself as then you can get a link when the presentation publishes.