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