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