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