Colorful detail in viewer

[serg_panther]

Hello

i have a model of frame home. In preview i have seen colorful - all detail is difference color, but when i opening - i will see common frame of the same color. How can i do different color like in preview?

i have only model, i am not a creator

 look on shared files

first - what is when i opened

second - what i would to see, but it only a preciew

i am not professional, so explain please in detail