Absolutely!!! Your carryon will most likely be too large to keep on the bus with you, so it will be stowed beneath your bus, and given to you when you get off at your resort.
Just remember that the driver will be expecting a tip for baggage handling. So, plan accordingly. I have no issue tipping the bus driver for stowing bags beneath the bus. Heck, I've even tipped the driver when I had no bags at all!! Yes, he was that good!!!