Retrieving images from Amazon S3 bucket

I am storing images in an S3 bucket, but I'm not able to display the link to the image. This is the error I get:

<Error>
  <Code>AccessDenied</Code>
  <Message>Access Denied</Message>
  <RequestId>8CAF92C03A75648C</RequestId>
  <HostId>
     ocfqcRiXsJoV0mBom0z+nmV3seEMRpdBMvDddy1sgQrIOq19/UvK6BmurlM8v20zGIvh2ITHjYc=
  </HostId>
</Error>

I need to have images display on various domains, but more than I would be able to handle in making CORS rules for each one.

<CORSConfiguration>
    <CORSRule>
        <AllowedOrigin>*</AllowedOrigin>
        <AllowedMethod>GET</AllowedMethod>
        <MaxAgeSeconds>3000</MaxAgeSeconds>
        <AllowedHeader>*</AllowedHeader>
    </CORSRule>
</CORSConfiguration>

How can I open this bucket up so that images are publicly able to be displayed?