To visualize your data using Kibana, you have to click on the application's name, from the Logsene tab of your account:
Alternatively, you can go to https://apps.sematext.com/logsene-kibana/index.html#/dashboard/file/TOKEN, where TOKEN is the application's token as shown in above. And while you're creating or modifying applications, any button that looks like this will get you to Kibana: 
Once you're there, you can customize your dashboard to do all kinds of searches for your data:
As well as to visualize it: