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