The Hollyoaks actress is married to ex-Liverpool footballer Harry Kewell, who currently plays for Galatasaray and the Australian national side.
Speaking to Take 5 about her fellow WAGs, Murphy explained: "I know Alex Curran - she doesn't live that far away. I probably know her and Nicola Carragher best. I know Coleen Rooney, and we keep in touch with texts and stuff.
"They have more pressure because their husbands play for England. The media is on to them all the time - criticising them for what they are wearing. I'm so glad it's not like that for me. Half the time when I do the school run I look a mess!"
However, the mother-of-three confessed that she has received more attention since signing up to play Eva Strong on Hollyoaks.
She said: "There's a bit more interest. It takes me by surprise if I see a photographer as it doesn't happen all the time. As long as I can still live my life with my kids and be normal, that's okay."