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