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