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