The Yearn DAI v1 vault exploit transaction is 0x6dc268706818d1e6503739950abc5ba2211fc6b451e54244da7b1e226b12e027.
The below svg file was generated using the tx2uml tool that generates UML sequence diagrams from Ethereum mainnet transactions.
tx2uml.ts 0x6dc268706818d1e6503739950abc5ba2211fc6b451e54244da7b1e226b12e027 -n nether -v -f svg -o ./v1yDAI.svg
You need to have access to an archive node to run the above command.