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