Language is generally ambivalent, especially with widely used words. Without a preface it could easily be misconstrued by someone who wants to hear it differently . Just consider what you can put after the verb like. In modern English you can like, and nowadays with the common hyperbolic love, everything (food, people, items, etc). If you want to use just a single sentence you might want to choose a more specific word.
Using my average skill of of Spanish I would assume that the English, I find children delightful, might serve you well.
Other than that there is always context. Basically every (non-technical) sentence on its own can be misconceived by malevolent listeners or readers. So one solution is always using more words to describe more clearly what you mean.
Of course, there is also the context of the situation. If you are as a parent with your kids on a playground, then the original sentence will unlikely be misconstrued. If you are looking somewhat dubious, leering and eyeing the same kids from the other side of the playground fence, then you can say what you want and everyone will assume the worst.