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