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