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