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