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