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