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