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