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