PCB equivalent of wire twisting
Think about why you want to twist wires in the first place. It is to keep the loop area as small as possible. With the loop area small, the opposing currents generate two opposite magnetic fields that cancel each other out. On a PCB, this is usually done by what is called 'differential pair'-traces. What it basically means for your PCB is two straight traces, as close to each other as possible.

The traces can be side by side, but using two layers the loop area is possibly even smaller by routing them on top of each other.