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