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