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