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