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