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