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