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