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)(31,45)(33,47)(35,40)(36,48)(37,42)(38,46)(39,44)(41,43) 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)(24,40)(26,29)(27,43)(28,34)(30,35)(31,38)(33,46)(37,41)(39,47)(42,48)(44,45) 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)(21,33,37,45)(23,34,24,35)(26,40)(27,41)(28,32)(31,46)(36,42)(38,43,39,48)(44,47)(1,5,6,4)(2,8,9,14)(3,12,13,11)(7,15,10,16)(18,26)(20,29)(27,42)(28,30)(33,45)(34,35)(43,48)(44,46)(3,13)(7,10)(11,12)(15,16)(17,21,24,39,22,37,23,38)(18,27,28,44,26,42,30,46)(19,31,25,41,32,47,40,36)(20,33,35,48,29,45,34,43)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.