One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,9,10,16)(4,12,14,7)(6,13,15,11)(18,23)(20,21)(24,31)(25,26)(27,29)(30,32)(33,34)(35,39)(36,43)(37,45)(38,41)(40,42)(44,47)(46,48)(1,3,5,10)(2,6,8,15)(4,13,14,11)(7,16,12,9)(17,18,22,26)(19,24,28,32)(20,23,21,25)(27,30,29,31)(33,35,38,37)(34,39,41,45)(36,42,44,46)(40,47,48,43)(17,19,22,28)(18,24,26,32)(20,27,21,29)(23,30,25,31)(33,36,38,44)(34,40,41,48)(35,42,37,46)(39,47,45,43)(3,10)(6,15)(9,16)(11,13)(17,20,22,21)(18,25,26,23)(19,27,28,29)(24,31,32,30)(34,41)(39,45)(40,48)(43,47)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.