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