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