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