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