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