The output by default goes into a subdirectory img, but you might want to add the option -d output-directory to keep output files separate from successive runs, particularly if you will run the utility against different BIG-IP systems for different operational environments. You can also use these:
-c partition -v vs to run for only a particular VS (the partition must also be given)
-e to change the output file type - default is JPG, but there are the options of SVG or PNG
Put it in /etc/crontab to run every night, perhaps, and output the files to a directory served by Apache? The files are predictably named, so you could link directly to them from other tools.
If you are averse to command-line parameters (perhaps you don't want the password to appear in a process listing) you can instead update these variables in the script: