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