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)(8,13)(11,14)(15,16)(18,23)(19,26)(25,30)(27,32) involution — undirected(2,6)(7,9)(8,12)(14,15)(17,18,22,23)(19,24,26,20)(21,25,29,30)(27,31,32,28)(33,34,38,42)(35,40,45,39)(36,37,41,48)(43,47,46,44)(2,6)(3,10)(4,13)(14,15)(19,26)(20,24)(21,29)(25,30)(33,35,38,45)(34,39,42,40)(36,46,41,43)(37,47,48,44)(1,3,5,10)(2,7,6,9)(4,11,13,16)(8,14,12,15)(17,19,22,26)(18,24,23,20)(21,27,29,32)(25,31,30,28)(33,36,38,41)(34,37,42,48)(35,43,45,46)(39,44,40,47)(1,2)(3,9)(4,8)(5,6)(7,10)(11,15)(12,13)(14,16)(17,20,22,24)(18,19,23,26)(21,28,29,31)(25,27,30,32)(33,35)(34,40)(36,46)(37,44)(38,45)(39,42)(41,43)(47,48)(1,4)(2,8)(3,11)(5,13)(6,12)(7,14)(9,15)(10,16)(17,21)(18,25)(19,27)(20,28)(22,29)(23,30)(24,31)(26,32)(33,37)(34,41)(35,44)(36,42)(38,48)(39,46)(40,43)(45,47) 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.