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