Hair experts will tell you that shorter hair makes you look younger and is more flattering to an older face. As I age (47,) I have definitely found that to be true. I have had long hair most of my life, but the shorter do is much more flattering! Go for an actual styled cut, not just short hair. I find I even feel a little more flirty and sexy!
Color is another issue as you age. Hanging on to bleach blond, fire red and black make you look older because they enhance the yellow tones in your skin. Unless natural gray, older women should stay with a medium tone that is closest to their real hair color.