A simple three-strand braid.
Rendering
\usetikzlibrary{braids}\begin{tikzpicture}
\pic[
rotate=90,
braid/.cd,
strand 1/.style={red},
strand 2/.style={blue},
strand 3/.style={green}
] {braid={s_1 s_2^{-1} s_1}};
\end{tikzpicture}