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