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)(17,18,23,25)(19,22,20,24)(21,26,30,32)(27,29,28,31)(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)(17,19,23,20)(18,24,25,22)(21,28,30,27)(26,29,32,31)(33,35,39,45)(34,40,36,43)(37,38,44,48)(41,42,46,47)(2,6)(3,10)(8,12)(11,16)(18,25)(19,20)(26,32)(27,28)(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)(17,20,23,19)(18,22,25,24)(21,28,30,27)(26,29,32,31)(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)(17,21)(18,26)(19,27)(20,28)(22,29)(23,30)(24,31)(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)(18,19)(20,25)(21,29)(23,24)(26,27)(28,32)(30,31)(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.