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