To add map to the page with listings, you should create page with corresponding shortcode.
To configure the map, please go to Settings of the plugin -> Map and select required value in drop-down first:
Then you can select the option for category/type/status, etc. and set up icons like you like most:
Under map icons, you can configure width and height of the map as well as the number of listings.
In case if you did everything correct but nothing displays, please make sure that you have entered Google Map API key in Settings.