How to make inference when we have too much of data like this

There are too many fields, but the column seems important to be included as a feature. What to do with it?

What is on the ‘x-axis’?

Maybe you can group up categories.

Designation of employees, and y is salary

As @ishvinder suggested, probably better to group them in some categories (job grade for e.g.) for common plot. And have separate plots for individual categories. ( I don’t have any other ideas at this time)