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