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