how delegate can view multiple users’ calendars

I recently moved from a PC to a Mac in a corporate environment (using Exchange server).  I want to be able to view multiple user calendars in separate columns simultaneously, like I used to when using Outlook for PC.  Currently I see everyone's appts/meetings on my own calendar, making it very confusing and difficult to distinguish who's calendar items are whose.  Plus, various users like to color-code (categorize) their calendar items, but all I see is one color for everything.  Help!