WillC said:Your Senecio is a succulent. That means it should be kept in a small (nursery) pot with soil allowed to dry out halfway deep into the pot before watering. It also should be placed on your sunniest windowsill.
I know the pot looked small to you, but it should not have been repotted. The larger pot and additional soil mean it takes longer for the soil to dry out properly. That, plus your frequent watering have probably caused the roots to rot and they are no longer able to absorb water even though the water is plentiful.
Let the soil get very dry before you water again. If it does not perk up after the soil dries, then it is unlikely to recover, I am sorry to say.
Danita said:I agree with Will about this plant and would follow his advice.
I purchased this plant a month ago to plant in an outside container. Life happened and I haven't planted it yet. It is still in the 4-5 inch pot that it came in from the nursery. It is sitting outside on my front porch step where it's in the hot, Georgia sun for the first half of the day with 90+ degree temperatures. I haven't seen it wilt once, so far, even when neighboring plants are pouting. It gets watered when the soil looks/feels dry. Your plant looks etiolated (pale & stretched out looking for more light). As Will suggested, it may have root rot if it was overwatered and may not recover.