Workplace diversity is that kind of thing which speaks volumes about your company. The more diverse your workplace is, the more successful employer you are going to be. To begin with, you need to figure out what your long-term goal is and to move towards it.
Apart from the obvious things such as hiring people who represent different races, ethnicities and genders, do not forget that there are lots of steps you need to take. As a result, all those initiatives are going to bring a positive result. The key aspect is not to forget about any aspects as all of them are vital.
For instance, move away from the business model of monitoring how many hours your employees spend at the office. You are most definitely aware of the fact that successful workplace culture is not about that. As any other employer, you would like your employees to come with the best ideas possible. Well, it is impossible when they are too worried about what time they are supposed to come to office and to leave. Employees need to feel free in order to be creative.