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