Like for example, I want to create a chatbot that provide the map images for location of library in my city. If a user requested for it,can Amazon Lex chatbot generate graphics or image of the map in this case as output for the user?
If it's just images, take a look at GenericAttachment.
If it's more complex, then you will have to create custom response payloads which you then process in your frontend application in a way that is bespoke to your application.