How to get good color steak without sous-vide
You can certainly get good steak without sous vide, both in color and taste.
The quality of the meat matters, but is not the only variable. You should get the proper cut, and while the cow diet is not necessary for a red color, if it was slaughtered too young, the meat will be lighter in color. Not grey though, just a less saturated pink-red. And make sure that you have a thick enough cut, something very thin will not get a pink center.
The more important part, especially with your greyish results, is the temperature. If you get grey meat that is not juicy enough, you are overcooking your steak. It could be that your thermometer is inaccurate (hopefully you have a digital one, the analog ones aren't very useful), or simply that you are not accounting for the proper cooking process.
The temperature you see on the temperature chart is the final internal temperature at the core of your meat. You have to account for additional temperature rises both from the sear and from carryover during resting. So, if you think you want a 57 C steak, you should stop cooking it at maybe 54 (depends on thickness), and even earlier if you are doing a sear. The sear itself should be on a really hot pan, so you get a very short duration, maybe 15 seconds per side. It could also be that your preference is for a steak that is rarer than the average medium rare (that would be at 57 C), and/or that your thermometer is consistently undermeasuring the temperature.
Whatever the reason, just continue taking the meat out at lower thermometer readings until you get a result you are happy with, then stick with repeating it that way no matter what the thermometer shows.