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