Saudi Airlines haven't published any plans to hold recruitment drives specifically in Morocco, however there are 2 ways to get your dream job with Saudi Airlines..
1) Apply on their website. They accept all sorts of applications and advertise various positions and lots of different countries, so this may be the quickest way to submit an application.
If Saudi Airlines doesn't have any position that matches your aspirations, you could always check out their rivals; Qatar Airways (http://careers.qatarairways.com/qatarairways/vacancysearch.aspx) or even your own local Royal Air Morocco (http://www.royalairmaroc.com/corporate/Rejoignez-nous/Processus-de-recrutement)
The 2nd option would be to track down someone from their HR department and send an enquiry to them directly.
How do you find them?
Easy. Just search LinkedIn.