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