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