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