Its position and orientation on the sky can be anything. It depends on your location on Earth, time of day, and time of year. For example, I can always and instantly tell when a photo was taken from the southern hemisphere, because then the Milky Way looks "upside down".

Also, I did a little photo manipulation to try (as best as I can) to recreate how the Milky Way appears to the unaided eye from a dark site. It's not perfect, as the eye just does not see the same as a camera does (different dynamic range, different sensitivity to color, and so forth). But it gives a fairly good idea:

Couple of things to make note of:
-The ground around you appears
completely black when you're at a truly dark site. You can't see a dang thing. I stepped away from my camera/tripod at one point and could not find it from even 3 feet away.
-There are a LOT of stars, but they generally look colorless except for the brightest ones.
-The band of the Milky Way looks diffuse and mostly colorless. If the zodiacal light is visible, then the Milky Way seems bluer and the zodiacal light yellower.
-The air about 10-20 degrees above the horizon seems to glow slightly. This is airglow. (I actually did capture it in my photo, it's not edited in.) Airglow may look vaguely green or bluish.
-If you're wondering what the bright spots are near and just above the horizon, it is light pollution from distant towns.