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