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