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