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