Hello tycheun,
It looks like your theme’s stylesheet defines a larger left margin or padding for the ul (or some other) html element that overwrites the filters’ native setting. What you could try to do is add a more specific css rule that would in turn overwrite the one set by your theme.
It is rather difficult to guess what this rule could be without seeing the live page, but try adding this either in you theme’s style.css or or in the Appearance > Customize > Additional CSS / Custom CSS section:
body .awf-preset-wrapper .awf-filters-form .awf-filters-container > ul { margin-left: 0px; }
To check if the newly added rule works, save the new CSS rule (either in your CSS editor, or by pushing the Publish button in the WordPress Customizer), and reload your shop page ingnoring cache by pushing Ctrl + Shift + r (Cmd + Shift + r on Mac).
If the above doesn’t help, in order to help you I will need a link to your test site.