The social network sites you can add in the WooCommerce generated emails have to be configured from the option panel of the plugin, as shown in this page of the documentation.
On the contrary, in this section of the configuration panel of the template, you can change the following options:
- Social network buttons in the header: show/hide the social network buttons in the header of the email.
- Social network buttons in the footer: show/hide the social network buttons in the footer of the email.
- Social network buttons color: style to assign to the social network buttons (black/white).