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