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