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