Thing is, this way of eating is mainly about eating high quality (as much as possible) real foods. Everyone does paleo in a different way, so there really isn't one way of eating that applies to everyone. Some people are eating extremely high levels of fat and are super carb phobic. Others have a more moderate approach, and have higher levels of carbs and lower levels of fat in their diets. Some people are eating super high protein, and others are trying to keep protein lower. Others are avoiding certain types of foods (i.e. nightshades, dairy) and others aren't. Some people are eating a diet that is really vegetable heavy, and others (like me) can't due to digestive issues. Some people are all about fruit (like me) and others have a panic attack if they eat one grape.
Personally, I like the freedom of NOT having to overplan every meal, but if that's your thing, maybe it would be easier to keep a master list of foods from which you can plan your meals. For example, you could list the categories of foods you want to eat (fruit, veggies, starches, meats or simply fat/carbs/protein) and brainstorm all the foods in that category you'd want to eat, so you have a list to choose from.