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