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