Guardiola watched Sunday's game at home to third-placed Valencia from the stands after the club's appeal against his dismissal for protesting a decision was rejected by the Spanish football federation (RFEF).
"I have seen the footage and I am not very proud," he told a news conference on Saturday.
"Seeing it I can understand the sending off and I don't like seeing myself like that.
"But when someone lies you have to appeal. They (the officials) lied in the match report and put things in there that I did not say."
He quoted Guardiola as saying: "Your decisions are the wrong way around" and "You don't understand anything."
"There will be more (sendings off) because I know myself," Guardiola said. "I try to stay calm because of the institution I represent but sometimes I can lose it and they send me off."
"I am very clear about the fact that we will need a lot of points to be champions," he said.
"They are the favourites, like us, to win the title. The really difficult task and merit is winning the (domestic) league and we have to focus on that.
"We have to concentrate on the league and that will give us the stability we need to fight in Europe."
