If you somehow have access to Scorched Earth items, be sure to make and consume Cactus Broth before taming this animal; Together with a full set of Ghillie Suit and a clear taming area, you can easily pet it without risking an aggro of either flee or attack kinds.
Normally you can't tame the pack leader, so just get a pteranodon or argy, pick it up and drop it in a large area (like a separate section of your base). When you take it away from the rest of the pack, it removes its 'pack leader' title, allowing you to tame the highest level hyena of that pack.
I used a combat argy to follow them around till they got stuck on something. Tamed a 145 and 150 both times they just walked in place while I sat there and hit E every 30 secs. Don't leave the argy to close or they will continue to try and flee even while stuck.