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