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)(17,18,23,20)(19,26,22,24)(21,25,30,28)(27,32,29,31)(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)(19,24,22,26)(21,28,30,25)(27,32,29,31)(35,40)(37,46)(42,43)(44,47)(1,3)(2,9)(4,11)(5,14)(6,15)(7,13)(8,12)(10,16)(17,19,23,22)(18,24,20,26)(21,27,30,29)(25,31,28,32)(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)(19,26,22,24)(21,28,30,25)(27,32,29,31)(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)(18,25,20,28)(19,27,22,29)(24,31,26,32)(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)(17,22,23,19)(18,26,20,24)(21,29,30,27)(25,32,28,31)(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.