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