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