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