Ce img is not a fieldtype where you can expect any fields. It is image cropping and scaling plugin. AWS is a different plugin which gives you ability to upload/fetch images to/from bucket.
Implementation is pretty simple. Suppose you have a file field (image) in entry. At frontend template you will write something like this:
<img src="{image_field}" />
This will give you original Image. Now with CE Image, You will write something like this:
{exp:ce_img:single src="{image_field}" width='100' height='100' crop="yes" quality="75" cache="no" overwrite_cache="yes" allow_scale_larger="yes" attributes='class="ce_image"'}
I have added most common parameters but required paramter is only src=''
To implement AWS, You just have to add one more parameter: bucket="myBucketName"
and image will start uploading and fetching bucket URLs.
I suggest you to go through documentation here: https://docs.causingeffect.com/expressionengine/ce-image/user-guide/variables.html#aws-url