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