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