Node keyframe locations

I am trying to key a fade between two materials. I have set both materials up in the node editor using a mix node. I am able to keyframe the factor value to fade between the two materials, but I can’t find where the keyframes are represented in the dopesheet or in the graph editor. Does anyone know where the keyframes for nodes are displayed in the dopesheet or graph editor?

I even found an option to show/hide node animation data in the dopesheet, but none of the keying I did in the nodes show up in it.