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