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