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