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