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