You can group all resources' calendar into one calendar, or group each resource's calendar by date, or by resource to get the calendar you want. Considering you have three resources, if you group all resources' calendar into one, you will have all schedules/events for all resources on one calendar.
When the grouping option is set to "group by date", each calendar will be organized by date then by resource. When the grouping option is set to "group by resource", each calendar will be organized by resource first then by date.
To change/set the group option, please go to Resource->Resource Option->Group in MultiCalendar.
