Hi,
In the frontend CSS of HikaShop (that you can edit under the Display tab of the HikaShop configuration page), you've actually already customized the look of the cart module to display like this with that CSS:
#hikashop_cart_module div.hikashop_cart_dropdown_content {
border: 1px solid #eee;
left: 0px !important;
right: -190px !important;
}
If you change that CSS to :
#hikashop_cart_module div.hikashop_cart_dropdown_content {
border: 1px solid #eee;
left: -190px !important;
right: 0px !important;
}
it will then display on the left of the cart icon.