Howdy Chrystal! I'm so glad you are planning to enjoy the breakfast buffet at
Cape May Café at Disney's Beach Club Resort!! Yummy and fun!!!
I am typically a huge proponent for using Disney Transportation. However, depending on the time of your reservation, you might consider taking a taxi or using a personal vehicle if you have one available. A taxi within Walt Disney World Resort is typically $20 or less (including gratuity) to any destination.
Another option would be to take a bus to one of the theme parks and then take a bus to Beach Club. My biggest concern is the time of your reservation. Is there a theme park that will be opening early enough on the day of your reservation that buses will be running early enough to get you to Cape May Café on time? Do you know if there is a morning extra magic hour early opening?
When you arrive at Saratoga Springs, I would encourage you to speak with a Cast Member and ask for their advice based on the date and time of your reservation.
I love that you are thinking about this now. Super job of planning!!!
Thanks so much for your question and please let me know if you need any further information. Have a magical day!!