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