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