Here is the first chart for making individual sigils.
Then here are sigils I made for Infinity, Network, Reign, Awaken, and Khaos.
I just spell it out in English, drop repeating letters. If the number corresponding to the particular letter is made up of more than 1 letter, I only draw the circle for the second (when the number is completed being drawn out). It doesn't really matter how you do this make your own grid and play connect the dots.
Here they are made into a Multi-Sigil or basis for a Talisman: