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