Prepare the quinoa according to the package directions. Wheat usually calls to be soaked overnight, but I've found that simmering it in a large pot of water for 1-1.5 hours then draining does the trick as well. I like my wheat berries to be on the chewy side, but if you want yours to be softer, leave it on the stove longer.
To make the salad, just whisk the dressing together, then pour of the salad ingredients while the grains are still warm. Allow it to cool to room temperature and serve. If you make this a day in advance it tastes even better the next day.