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