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