well, as I like to say, it's an island, and not a giant one, so you can only get so lost. And there are only 3 major highways, and by "major" only H1 is really a "major" highway, like actual big city highway. So exits are clearly marked.
But from the airport to Aulani you're taking the same highway the whole way. The airport is at the entrance of pearl harbor, so you'll see the signs for the Historic sites as you're driving out. And then Dole is just a very easy drive from Aulani.
I would just look at a map, see how small and close things really are, and sort of start familiarize yourself with the major roads and the layout. I find it really easy to drive here. Going into town and into Waikiki is a different story all together. I am always the driver for my friends because no one wants to do it. I don't find it any worse than driving in any big city. Easier than boston, in my opinion, less traffic than New York. But I wouldn't say that it's for the faint of heart.