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