Prepare a 'Flow chart' of the personnel with suitable hierarchy structure

I've recently joined as a 'Training & Development Manager' in an Academy which coaches for NEET & other medical entrance exams. My role would be training, business development, client & vendor relations management..
We are now in the establishment of the academy not late by Jan'2019
I would like to prepare a 'Flow chart' of the personnel with suitable hierarchy structure.
I can give you the list of with their designations, if anybody can give me some inputs for preparing the 'Flowchart' as well as the 'Job Descriptions' it would be of more use..Its as follows..
1 Chairman
2 Board of directors
3 Academic/ Centre Manager
4 Training & Develpment Manager
5 HR/ Admin Manager
6 Front Office Executive
7 Business Analyst
8 Tele-marketing Executive
9 System Administrator
10 Office Assistant
28th November 2018 From India, Kochi

Hi Mariam, An Organisation chart is suggested as in the attachment. Job descriptions & KRA, you may try this and post it for members' suggestions here.
28th November 2018 From India, Bangalore

Attached Files (Download Requires Membership)

ABC & Co.Organisation Chart.pptx (86.4 KB, 423 views)