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