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