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