Tile layout on the diagonal to minimize cutting
No, there isn't. You'll want to follow a common strategy of either running a full tile or a joint down the center of the room so that the rows at the edges look appropriate. Snap one or two chalk lines on the floor as references, then snap one or two at 90 degrees to get your joint lines straight.
With a wet saw these types of cuts are not difficult nor time consuming. With a helper you can lay tile almost as fast as you can mark the cuts. Once you work out a strategy for measuring it's easy.