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