If by, "require drivers" you're actually trying to say, "does not require the user to install additional drivers," then yes, in most (but not all) cases, that's true.
But OS X requires drivers be present in order for the hardware to work, not unlike Linux, Windows, or any other operating system. Even in certain circumstances, the user will need to install drivers that were not included with the system (like in the instance of my new Brother laser printer). If you dive into the system and remove all video drivers and reboot, then guess what -- you won't have any video. Those drivers were required, and when you removed them, they broke the system. Drivers. Required.
So, in the end, I do think it's a very truthful statement to say, "OS X requires drivers."