Grid Align

class Example extends Phaser.Scene
{
    constructor ()
    {
        super();
    }

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v355');
        this.load.spritesheet('diamonds', 'assets/sprites/diamonds32x24x5.png', { frameWidth: 32, frameHeight: 24 });
    }

    create ()
    {
        const group = this.add.group({
            key: 'diamonds',
            frame: [ 0, 1, 2, 3, 4 ],
            frameQuantity: 20
        });

        Phaser.Actions.GridAlign(group.getChildren(), {
            width: 10,
            height: 10,
            cellWidth: 32,
            cellHeight: 32,
            x: 100,
            y: 100
        });
    }
}
const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#2d2d2d',
    parent: 'phaser-example',
    scene: [ Example ]
};

const game = new Phaser.Game(config);