Access denied on resource image field

Hello artisans, I am using Laravel nova and aws s3 as storage location. In one of my resource I have Image field as follow Image::make('preview_image')->disk('s3'); I could able to upload file with laravel nova and can see that file in bucket but on resource details page its shows 'This image could not be found'. clicking the link it shows access denied. I am using AmazonS3FullAccess policy on s3. what could be the reason?