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