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