From Earth, the sun appears yellow due to the color distortion through our atmosphere. In space however, it is the whitest thing you could ever see. Don't be fooled by close up pictures of the sun either, those are put through filters to appear more orange/yellow.

Nonetheless, the sun should white in this map.

Also, since it's a space elevator I'm pretty sure Earth should be positioned directly under the elevator rather than on an angle to the side.