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