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