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)(18,23)(21,29)(24,30)(28,32)(33,34,40,44)(35,45,47,38)(36,46,48,41)(37,43,39,42)(1,3,7,5)(2,8,4,9)(6,13,14,11)(10,16,12,15)(20,27)(24,30)(26,31)(28,32)(33,35,40,47)(34,38,44,45)(36,43,48,42)(37,41,39,46)(2,4)(8,9)(10,12)(15,16)(17,18,22,23)(19,21,25,29)(20,24,27,30)(26,28,31,32)(33,36,40,48)(34,41,44,46)(35,42,47,43)(37,45,39,38)(1,4,7,2)(3,9,5,8)(6,12,14,10)(11,16,13,15)(17,19,22,25)(18,21,23,29)(20,26,27,31)(24,28,30,32)(33,37,40,39)(34,42,44,43)(35,41,47,46)(36,45,48,38)(1,5,7,3)(2,9,4,8)(6,13,14,11)(10,16,12,15)(17,20)(18,24)(19,26)(21,28)(22,27)(23,30)(25,31)(29,32)(33,38)(34,35)(36,37)(39,48)(40,45)(41,42)(43,46)(44,47)(1,6,7,14)(2,10,4,12)(3,11,5,13)(8,15,9,16)(17,21)(18,25)(19,23)(20,28)(22,29)(24,31)(26,30)(27,32)(33,39,40,37)(34,43,44,42)(35,46,47,41)(36,38,48,45)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.