The Kommandos paint their 'Mechs and vehicles gray and blue with silver highlights.
Per FM:Capellan Confederation, page 91.
They all display the Confederation crest in addition to the Cavalry emblem, an armored knight with a red plume in his helm rising from a green triangular field. Each regiment except for the Wild Ones also displays a regimental insignia, usually on the back of the shoulder or the upper leg.
The unit insignia is a lance spearing a flaming sun.
Per FM:Capellan Confederation, pages 86 and 91.