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