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