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