By default, the Window Browser gives each item in the graph a short name. You can also display the complete symbol name for each item if you wish, as displayed in the Window line of the Description list. You can configure this option from the Components tab of Preferences dialog.
Click Long Names in the Print Using panel to display the complete symbol name of each item in the graph.
Click Short Names in the Print Using panel to display the short name for each item in the graph. This is the default setting.
Bear in mind that graphs are a lot larger when you display them using long names, and can therefore be more difficult to examine.