Map View has a number of options you can use to organize your view of devices. Arrange options are available from the Arrange menu on the main menu bar and right-click menu. Display options are available from the View menu on the main menu bar and the right-click menu.
Try the different functions on the Arrange menu until you are satisfied with the topology.
If you have a large set of devices or want to represent a topology specific to your network, you can also use the graphics tools to create custom map views.
For example, to clean-up a map, after completing discovery, you can try the following display options: