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)(19,25)(20,24)(21,26)(22,23)(27,32)(28,29)(30,31)(33,34,38,40)(35,41,45,39)(36,46,42,37)(43,44,48,47)(2,4)(7,9)(8,12)(14,15)(17,19)(18,21)(20,28)(22,26)(23,25)(24,32)(27,30)(29,31)(33,35)(34,39)(36,43)(37,44)(38,45)(40,41)(42,48)(46,47) involution — undirected(18,23)(19,26)(24,31)(27,28)(34,40)(36,42)(39,41)(43,48) involution — undirected(1,3)(2,7)(4,9)(5,10)(6,11)(8,14)(12,15)(13,16)(17,19)(18,21)(20,27)(22,26)(23,25)(24,29)(28,30)(31,32)(33,36,38,42)(34,37,40,46)(35,43,45,48)(39,44,41,47)(1,4,6,2)(3,9,11,7)(5,8,13,12)(10,14,16,15)(17,20,22,30)(18,24,23,31)(19,27,26,28)(21,29,25,32)(33,35)(34,41)(36,43)(37,47)(38,45)(39,40)(42,48)(44,46)(1,5,6,13)(2,8,4,12)(3,10,11,16)(7,14,9,15)(17,21)(18,19)(20,29)(22,25)(23,26)(24,27)(28,31)(30,32)(33,37)(34,42)(35,44)(36,40)(38,46)(39,48)(41,43)(45,47)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.