How to make google cache my site faster?

No never b'coz it is my luck what ever happens with me , but sometimes someone can make problem for us also

Google loves unique content and updates on continues bases. Regular update your sitemap and use your sitemap link in robots.txt file

Thanks Mr. Nathan P. I have tried your idea and get successful cached.

1. Post unique and high quality content on your website.
2. Start PPC.

Regularly Update with unique and quality content.

You need to update your sitemap.
If you added new pages in site the make them fetch to Google through webmaster.

Following are few things through which you can attract Google robots.

1) To get frequent cache you need to update your site by posting quality and informative blog post and news on your site it will attract crawler.

2) You need to update your sitemap.
3) If you added new pages in site the make them fetch to Google through webmaster.

Determine whether your site is currently included in Google's index. Go to Google.com, and do a search for your site's URL. In Google's search box, (insert your web address for "sitename.com"). If your search did not find your website or blog, then it is not cached or stored in Google's database.

2
Add your URL to Google. Go to google.com/addurl.html. Next to URL, type in your URL address, and type in the squiggly letters in the provided box as a confirmation. Click "Add URL."

3
Get a link to