I work out everyday at the gym with a series of five days

1. Chest
2. Back
3. Bi's Tris
4. Shoulders
5. Legs
6. Go to step 1

Is lifting heavy every day like this safe for my muscles since i'm on a split giving each muscle time to rest or should I have some rest days in there? Also which days should I be doing cardio on I was never able to figure that out?

Thank you in advance.