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