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