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