One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,6,8,7)(9,10,13,11)(12,15,16,14)(17,18,21,24)(19,25,26,22)(20,28,29,23)(27,30,32,31)(33,34)(35,40)(36,42)(37,41)(38,39)(43,47)(44,48)(45,46)(1,2,5,4)(3,7,8,6)(9,11,13,10)(12,15,16,14)(19,26)(22,25)(27,32)(30,31)(34,39)(35,42)(37,45)(44,47)(1,3,5,8)(2,6,4,7)(17,18)(19,22)(20,23)(21,24)(25,26)(27,30)(28,29)(31,32)(33,35,38,42)(34,40,39,36)(37,43,45,48)(41,47,46,44)(9,12,13,16)(10,14,11,15)(17,19,21,26)(18,22,24,25)(20,27,29,32)(23,30,28,31)(33,36,38,40)(34,35,39,42)(37,44,45,47)(41,43,46,48)(1,4,5,2)(3,7,8,6)(17,20,21,29)(18,23,24,28)(19,27,26,32)(22,30,25,31)(33,37)(34,41)(35,43)(36,44)(38,45)(39,46)(40,47)(42,48)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.