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