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