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