Update Shopify theme to display multiple variants

Hello,

I need assistance with updating the coding on our Shopify Theme (Impulse) to display multiple colour variants on the collections page. The default is to display just one product with variant swatches underneath, but we would like each product to display separately on the collections pages (see example attached of how this would look)

We would also like to create a collection by colour e.g. All pink coloured items are displayed in a 'Pink Collection' etc.