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