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