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