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