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