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