Files hosted at Internet Archive
http://archive.org/details/Holy_Quran_with_Color_Coded_Tajweed_Rules_in_PDF
Download Here (192.4 MB)
Another color-coded Holy Quran, in South Asian Arabic script (used in India and Pakistan) is available here:
Tajweedi color-coded Quran in South Asian Arabic script by Zia-ul-Quran Publications
Tajweedi color-coded Quran in South Asian Arabic script by Pak company