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