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