The Gods #349 Worship

How can I pray to Satan

Short answer: In any way you can/want.

The only thing what is important shoudl be that your prayer comes from your heart with love and respect towards Father Zeus.
You can also do his Power Ritual https://tozrituals.org/ritual/demon/satan-absolution-ritual.html
Not spesficially a method of praying but when I want to feel close to Father Zeus I read Al-Jilwa and Qur'Et Al-Yazid, you can try that too https://templeofzeus.org/Satanic_Doctrines.html

You can do His Rituals: https://tozrituals.org/ritual/demon/satan-absolution-ritual.html and https://tozrituals.org/ritual/psalm/satan-psalm-1.html

You can also read: https://templeofzeus.org/SATANAS.php

Prayer is nothing more than you talking to Satan...You talk to him mentally and he listens to you...just like you talk to a friend normally, but with respect and politeness, of course.

How can I pray to Satan

You can pray Satan just by focusing on him and talking to him, he hears you. I can confirm this from numerous personal experiences, even very serious ones.
If you prefer something more formal: https://templeofzeus.org/Ritual.php
Other methods to tune into him and get in touch with him (which can be done if you are familiar with vibrations and have a few months, about six, of meditation and learning behind you):
https://tozrituals.org/ritual/demon/satan-absolution-ritual.html
https://tozrituals.org/ritual/psalm/satan-psalm-1.html