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