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