There are too many hand combinations for a starting hand chart. Basically you can divide playable hands into three categories:
Big pairs
Suited Aces
Wraps
Obviously a combination of all three is a super-premium holding. Like
![The Ten of Diamonds [Td]](https://www.pofex.com/images/smilies/Td.gif)
.
The hands are defined by the flop even more so than in hold'em. In hold'em, AA doesn't really need help and will always be big favorite. In Omaha, AA will rarely be a very big favorite preflop and against a field of player it should be routinely check/folded if it doesn't get help.
The hands you want to build are:
Nut full (which is why you play BIG pairs and not small ones)
Nut flush (which is why you play suited Aces but not suited lower cards unless they're wraps)
Nut straights (which is why you prefer middle and big wraps like JT89 to 5432)
For a beginner player I would recommend only playing good hands. ie: big pairs, suited aces that also have OTHER features (like a wrap or big pair) and 4-card wraps. Basically you want all four cards to be working together or you're playing an inferior hand. Post flop, draw to the nuts or don't draw. Don't play fancy, bet pot when you have the (temporary) nuts, it's incredibly easy to get out drawn.