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