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