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