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