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