How do I display the taxonomy for a custom post type in an array

As has already been noted, you can do this by iterating over each of the terms, which are WP_Term objects. Each of those WP_Term objects has a name property. So you’d do it like this:

$terms = get_the_terms( $post->ID, 'cpt_saving-type' );
$terms = is_array( $terms ) ? $terms : array();

foreach ( $terms as $term ) {
    echo $term->name.'<br />'; // Outputs each name.
}