Preheat the oven to 350 F. In a large bowl, mix together cake mix, eggs, and vegetable oil until smooth. Fold in the chocolate chips, crushed graham crackers, and mini marshmallows. In a shallow dish, combine granulated sugar and ground cinnamon.
Use a cookie scoop to form the cookie dough into balls, and roll each one into the cinnamon sugar mixture. Place the cookies onto a large ungreased baking sheet at least 2-inches apart. Bake for 10-12 minutes.