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