Probably the easiest way is just to rebuild her and pick the options that fit closest to the 5E options she took. Pathfinder 1E does not have any standard method of generating ability scores so there's no "one size fits all" way to convert it. In addition, we have a different list of skills so choosing where to allocate the skills will be a judgement call on your part to best fit her character.
Beyond that, the only remaining selections are feats, equipment, and domains. A Cleric in Pathfinder receives her choice of two domains from her deity. Looking up Talos on the forgotten realms wiki, it seems Talos in D&D 3.5 (the closest edition to Pathfinder rules-wise) offered the chaos, destruction, evil, fire, storms, and wrath domains. We don't have any wrath domain in Pathfinder, and storms is a subdomain of weather, so that gives you the choice of the follow domains: chaos, destruction, evil, fire, weather (storms). Pick any two.
Beyond that, if you have any specific questions we can try to answer them for you.