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