old question popped to the top for spam.
The code to show each term image:
<?php
$terms = get_terms(array('taxonomy' => 'service', 'hide_empty' => false));
foreach ($terms as $term) {
$term_image = get_field( 'tax_image', $term);
if ($term_image) {
?>
<img src="<?php echo $term_image['url']; ?>" alt="<?php echo $term->name; ?>">
<?php
}
}
?>
