Looks like some great options.
First of all, is this a governmental 457(b) or not? If so, no worries, go forth. If not, just realize that non-governmental 457(b) plans are technically considered the property of the institution and can be taken by the institutions creditors in bankruptcy.
Any of the Vanguard funds listed there (the ones that start with "VANG") would be a good option. You have a good total stock market fund, total international market fund, and total bond market fund. Do a bit of reading on
asset allocation and select a mix of those you're happy with.
If you're just starting out and this will be your only invested money (or even if not) one of the target date funds ("VANG INST TR XXXX") would also be a perfectly good option that you won't have to rebalance. Pick one with and asset allocation you're happy with after reading the above .The later the date the more stocks/less bonds they have, but all of the further out dates will be pretty similar because they really don't change that much until they get to be within 10-15 years of the date listed.