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