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